allennlowaton
Full Member level 5
Please help me with this guys.
I 'm trying to grasp about this high swing current source.
Below is the diagram of the high swing.
The resulting A-wave:
My HSPICE code:
I have concerns on the following:
1.I can't understand why is it that the resulting amplitude of output current don't reach the 100uA of the reference current.
2.As I alter the channel length, there is a significant increase in the amplitude, though I'm still trying to derived the computation.
3. As I make the channel length of the M4 equal with the other three, the output current drops to almost half of the original.
Any ideas will be appreciated.
I 'm trying to grasp about this high swing current source.
Below is the diagram of the high swing.
The resulting A-wave:
My HSPICE code:
I have concerns on the following:
1.I can't understand why is it that the resulting amplitude of output current don't reach the 100uA of the reference current.
2.As I alter the channel length, there is a significant increase in the amplitude, though I'm still trying to derived the computation.
3. As I make the channel length of the M4 equal with the other three, the output current drops to almost half of the original.
Any ideas will be appreciated.